Stellarium 0.9.1is a free program that puts a planetarium on your computer.
Stellarium for Java is a Java version of Stellarium, a free GPL software.
The Satellites plugin simulates artificial satellites in Earth orbit.
Just set your coordinates and go. It shows a realistic sky in 3D.
Better control view of the sky (atmosphere, fog, landscape; constellation).
An add-on for Stellarium which provides telescop control.
